In situ phosphorus addition to tantalum

Details In situ phosphorus addition to tantalum In situ phosphorus addition to tantalum

1981-08-24

1982-10-26

Stallard, W.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 05BB, 75 844, B22F 924

Patent

active

043560288

ABSTRACT:
During the method of preparing tantalum powder from a tantalum rich solution in an organic solvent in which a tantalum salt is precipitated from the tantalum rich solvent and the tantalum salt is reduced to metalic tantalum by an alkali metal, a phosphorus-containing material is added to either the precipitated step or the reduction step or both.

REFERENCES:
patent: 3825802 (1974-07-01), Kumugai
patent: 3829310 (1974-08-01), Mahy
patent: 4009007 (1975-07-01), Fry
patent: 4017302 (1977-04-01), Bates et al.
patent: 4149876 (1979-04-01), Rerat

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